CN110352145B - Vehicle seat with adjustable seat back and/or adjustable seat cushion - Google Patents
Vehicle seat with adjustable seat back and/or adjustable seat cushion Download PDFInfo
- Publication number
- CN110352145B CN110352145B CN201880014507.9A CN201880014507A CN110352145B CN 110352145 B CN110352145 B CN 110352145B CN 201880014507 A CN201880014507 A CN 201880014507A CN 110352145 B CN110352145 B CN 110352145B
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- CN
- China
- Prior art keywords
- seat back
- back structure
- seat
- panel
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 93
- 239000013536 elastomeric material Substances 0.000 claims abstract description 10
- 230000000452 restraining effect Effects 0.000 claims description 71
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000012559 user support system Methods 0.000 description 11
- 210000002414 leg Anatomy 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 210000001217 buttock Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/643—Back-rests or cushions shape of the back-rests
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/646—Back-rests or cushions shape of the cushion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/667—Lumbar supports having flexible support member bowed by applied forces
- B60N2/6671—Lumbar supports having flexible support member bowed by applied forces with cable actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/667—Lumbar supports having flexible support member bowed by applied forces
- B60N2/6673—Lumbar supports having flexible support member bowed by applied forces with motor driven adjustments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/70—Upholstery springs ; Upholstery
- B60N2/72—Attachment or adjustment thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/90—Details or parts not otherwise provided for
- B60N2/986—Side-rests
- B60N2/99—Side-rests adjustable
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
A vehicle seat includes a panel and an actuation mechanism. The panel comprises an elastomeric material. An actuation mechanism is connected to the panel. The actuation mechanism is configured to change a contour of the seating surface of the panel.
Description
Cross Reference to Related Applications
This patent application claims the benefit of priority from U.S. provisional application serial No.62/442,689 filed on day 1 and 5 in 2017. The entire contents of this patent application are incorporated herein by reference.
Technical Field
The present invention relates to a vehicle seat having an adjustable seat back and/or an adjustable seat cushion (user support structure).
Background
Conventional seat backs and seat cushions include a seat back portion. The conventional seat back and seat cushion contours are only provided with localized variations in the contours of the seat back and seat cushion, which do not achieve increased seat back contours. Conventional seat cushions and seat backs do not allow for complete changes in the contours of the seat back and seat cushion by adjusting the bearing portions. This provides a broken seat back and seat cushion profile and localized pressure points for the conventional seat back and seat cushion.
Disclosure of Invention
The present invention provides a seat back and seat cushion that is adjustable to laterally create uninterrupted profile variations to achieve at least a highly defined seating configuration and a flat lateral configuration. The seat back and seat cushion include elastomeric material as a support surface that allows the shape of the seat back and seat cushion to be reconfigured to achieve a great degree of flexibility so that the seat back and seat cushion can be configured to accommodate the body shape of any user. The seat back and seat cushion allow for an increased seating contour.
By integrating restraint into the thermo-elastic elastomer (TPE) (or other compliant support matrix form) panels, the seat back and seat cushion can be modified so that any degree of lateral support can be provided to the user. The seat back and seat cushion provide a comfortable transition for support so that no localized pressure points are provided.
According to the present invention, a vehicle seat includes: a panel comprising an elastomeric material; and an actuation mechanism connected to the panel. The actuation mechanism is configured to change a contour of a seating surface of the panel.
The panel may include an integrated flex rotary member defining at least one pivot point of the panel.
The vehicle seat may further include: a seat cushion including the panel. The seating surface is configured to engage at least a leg portion of a user.
The vehicle seat may further include: a seat back structure including the panel. The seating surface may be configured to engage at least a lumbar portion of a user.
The actuation mechanism may include a constraining and driving structure. The restraining and actuating structure may include an actuating member and a pivotable restraining and actuating seat back structure. The drive member may be in contact with the pivotable restraint and drive seat back structure. At least a portion of the pivotable restraining and actuating seat back structure may be in contact with the seat back structure.
The drive member may be actuated such that at least a portion of the restraining and driving seat back structure pivots a lateral portion of the seat back structure in an inward direction toward a user of the seat back structure and/or an outward direction away from the user of the seat back structure. The lateral portion may define a seat back structure bearing portion.
The seat back structure may be integrally connected to the pivotable restraint and drive seat back structure. A portion of the seat back structure may form the pivotable restraint and drive seat back structure.
The panel structure may comprise a thermoplastic elastomer. The panel may be a single integrally formed, one-piece panel.
According to the present invention, a vehicle seat includes: a panel comprising an elastomeric material; and an actuation mechanism connected to the panel. Actuation of the actuation mechanism increases or decreases the bearing support of the panel.
The actuation mechanism may include a constraining and driving structure. The restraining and actuating structure may comprise a pivotable restraining and actuating seat cushion structure. The drive member may be in contact with the pivotable restraint and drive cushion structure. At least a portion of the pivotally restrained and driven seat cushion structure may be in contact with the seat cushion.
The drive member is actuatable such that restraining and driving at least a portion of the seat cushion structure pivots a lateral portion of the seat cushion in an inward direction toward a user of the seat back structure and/or an outward direction away from the user. The lateral portions of the seat cushion may define a seating portion of the seat cushion.
The seat cushion may be integrally connected to the pivotable restraining and driving seat cushion structure. A portion of the seat cushion may form a pivotally restrained and driven seat cushion structure.
According to the present invention, a vehicle seat includes: a one-piece panel comprising an elastomeric material; and an actuation mechanism connected to the panel. Actuation of the actuation mechanism changes a contour of a seating surface of the panel such that the contour of the seating surface of the panel includes one of increased side support of the one-piece panel to a user and decreased side support of the one-piece panel to a user.
It is apparent that the above features (which will also be described below) can be used not only in the specific combinations described but also in other combinations or alone without exceeding the scope of the invention.
Preferred exemplary embodiments of the present invention are illustrated in the accompanying drawings and will be explained in more detail in the following description, wherein like reference numerals refer to identical or similar or functionally identical components. The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, reference is made to the drawings and to the accompanying descriptive matter in which there are illustrated preferred embodiments of the invention, their operating advantages and specific objects attained by their use.
Drawings
In the drawings:
FIG. 1 is a partial perspective view of a seat structure having a seat back structure with reduced bolster support;
FIG. 2 is a partial perspective view of the seat structure of FIG. 1 with an increased seating support;
FIG. 3 is a front perspective view of the seat back structure;
FIG. 4 is a rear perspective view of the seat back structure of FIG. 3;
FIG. 5 is an enlarged view of an actuation mechanism associated with the seat back structure of FIG. 4;
FIG. 6 is a top cross-sectional view of the actuation mechanism shown in FIG. 5;
FIG. 7 is a top plan view of the seat back of FIGS. 1 and 4 with reduced back rest support;
FIG. 8 is a top plan view of the seat back of FIGS. 1 and 4 with increased bolster support;
FIG. 9 is a cross-sectional view of a seat back structure connected to the actuation mechanism of FIG. 5;
FIG. 10 is a rear perspective view of the seat back structure connected to the actuation mechanism;
FIG. 11 is a cross-sectional view of a seat back structure coupled to the actuation mechanism shown in FIG. 10;
FIG. 12 is a cross-sectional view of a seat back structure coupled to an actuation mechanism;
FIG. 13 is a cross-sectional view of an actuation mechanism coupled to a seat cushion of the seating structure;
FIG. 14 is another cross-sectional view of the actuation mechanism coupled to the seat cushion of the seating structure;
FIG. 15 is a cross-sectional view of the seat back structure connected to the actuation mechanism;
FIG. 16 is another cross-sectional view of the seat back structure and actuation mechanism of FIG. 15;
FIG. 17 is a cross-sectional view of another embodiment of an actuation mechanism and a seat back structure;
FIG. 18 is a cross-sectional view showing a forward state and a rearward state of the seat back structure of FIG. 17;
FIG. 19 is an enlarged view of the actuation mechanism and seat back structure of FIG. 17;
FIG. 20 is a partial perspective view of the seat back structure of FIG. 17;
FIG. 21 is a side elevational view of the seat back structure of FIG. 17; and
FIG. 22 is a cross-sectional view of another embodiment of an actuation mechanism and a seat back structure.
Detailed Description
Referring specifically to the drawings, fig. 1 is a partial perspective view of a seat structure 1. The seat structure 1 comprises a user support structure (seat cushion) 3. The user support structure 3 has a user support structure surface 5 for engaging at least the buttocks and leg portions of a user. The user support structure 3 is connected to the seat back structure 7. The seat back structure 7 has a seat back structure surface 9. The seatback structure surface 9 engages at least a lumbar portion and a shoulder portion of the user. The user support structure 3 and the seat back structure 7 may be formed of any elastomeric material, but the user support structure 3 and the seat back structure 7 are preferably formed of a thermoplastic elastomer (TPE). The user support structure 3 may be formed as a single piece to provide an integrally formed single piece user support structure 3. The seat back structure 7 may be formed as a single piece to provide an integrally formed one-piece seat back structure.
The seat back actuation mechanism 11 is connected to the seat back structure 7 on one side of the seat back structure 7 as shown in fig. 1 and 2. Another seat back actuation mechanism (not shown in fig. 1 and 2), which is identical to seat back actuation mechanism 11, is provided on the other side of seat back structure 7. The two seat back actuation mechanisms may be independently controlled, or the two seat back actuation mechanisms may be connected such that the two seat back actuation mechanisms move simultaneously. Since it is understood that in fig. 1 and 2, the structure of each seat back actuation mechanism is the same, only the seat back actuation mechanism 11 will be discussed in order to avoid repetition. Actuation of the seat back actuation mechanism 11 changes the profile of the seat back structure surface 9 such that the seat back structure 7 has a flatter profile or a more curved (bowed) profile.
The seat back actuation mechanism 11 includes a pivotable seat back restraint/drive structure 17, the pivotable seat back restraint/drive structure 17 including a drive/restraint member 13, a pivotable seat back restraint/drive first element 19, and a pivotable seat back restraint/drive second element 21. The pivotable seat back restraining/driving first element 19 and/or the pivotable seat back restraining/driving second element 21 may be integrally connected to the seat back structure 7 such that a portion of the seat back structure 7 forms the pivotable seat back restraining/driving first element 19 and/or the pivotable seat back restraining/driving second element 21. The drive/restraining member 13 may be in the form of a rod 15, but it will be appreciated that any other structure may be provided. The lever 15 is connected to a pivotable seat back restraining/driving second element 21. The pivotable seat back restraining/actuating first element 19 and the pivotable seat back restraining/actuating second element 21 form a hinge, but it should be appreciated that any other suitable structure may be used. The pivotable seat back restraining/driving first element 19 is connected to the pivotable seat back restraining/driving second element 21 via a connector element 23 such that the pivotable seat back restraining/driving second element 21 is pivotable about an axis a relative to the pivotable seat back restraining/driving first element 19. The connector element 23 is shown in the form of a pin 25 (see fig. 2), but it will be appreciated that any type of connector may be used to connect the pivotable seat back restraining/driving first element 19 to the pivotable seat back restraining/driving second element 21. The pivotable seat back restraint/drive first element 19 is secured to the seat support structure 27. The motor 29 is disposed inside the seat support structure 27. The motor 29 is connected to a shaft 31, and the shaft 31 is connected to the driving/restraining member 13. The actuation of the motor 29 drives the shaft 31, which shaft 31 then drives the drive/restraining member 13 such that the drive/restraining member 13 extends in the direction of the seat back structure 7. When the drive/restraining member 13 extends in the direction of the seat back structure 7, the pivotable panel support structure second element 21 pivots relative to the pivotable panel support structure first element 19 in an inward direction I towards the user, which causes the sides of the seat back structure 1 to be pressed in the inward direction I towards the user to provide increased bearing support to the user, which alters the profile of the seat back structure surface 9. Fig. 1 shows the contour of the seat back structural surface 9 with a smaller bearing support than that shown in fig. 2. In fig. 1, the contour of the seat back structure surface 9 is flatter than the contour of the seat back structure surface 9 shown in fig. 2. When the pivotable seat back restraining/actuating second element 21 is pivoted relative to the pivotable seat back restraining/actuating first element 19 in an inward direction I towards the user, the profile of the seat back structure surface 9 becomes a more curved profile providing increased rest support.
Fig. 2 is a partial perspective view of the seat structure 1 of fig. 1. Figure 2 shows a seat back structure 7 with increased bearing support. The profile of the seat back structure surface 9 is more curved than the profile of the seat back structure surface 9 shown in fig. 1 due to the increased bearing support. Multiple actuation mechanisms 11 may be connected to the seat back structure 7 such that multiple sections of the seat back structure 7 may have different profiles.
Fig. 3 is a front perspective view of the seat back structure 7'. The seat back structure 7' is identical to the seat back structure 7 except that a different actuation mechanism 11' is used to change the profile of the seat back structure 7 '.
Fig. 4 is a rear perspective view of the seat back structure 7'. The seat back attachment structure 13' is attached to the rear surface 14' of the seat back structure 7 '. The seat back attachment structure 13 'is shown in the form of a tube 15', however it should be understood that any suitable attachment structure may be used. The actuation mechanism 11 'includes a seat back drive/restraint structure 18'. The drive/restraint structure 18 'includes an actuator structure 17', which actuator structure 17 'is shown in the form of a cable 19'. The drive/constraint structure 18 'includes another actuation structure 21'. The further actuation structure 21 'is in the form of a cable 23'. The drive/restraint structure 18 'includes an actuator 25'. The actuator 25' includes a motor 29' and a threaded screw shaft 27'. The threaded screw shaft 27 'has a first threaded region 39' and a second threaded region 41', wherein the threads of the first threaded region are oriented in the opposite direction to the threads of the second threaded region 41'. The threaded screw shaft 27' is connected to the movable cable connector 31' and the movable cable connector 35'. The movable cable connector 31 'includes a threaded nut 33', the threaded nut 33 'having threads that engage threads of a threaded region 39' of the threaded screw shaft 27', and the movable cable connector includes a threaded nut 37', the threaded nut 37 'having threads that engage threads of a threaded region 41' of the threaded screw shaft 27', such that upon rotation of the threaded screw shaft 27', the threaded nut 33 'and the threaded nut 37' rotate. One end of the cable 19 'is connected to the movable cable connector 35', and the other end of the cable 19 'is connected to the driving/restraining element 43'. One end of the cable 23 'is connected to the movable cable connector 31', and the other end of the cable 23 'is connected to the driving/restraining element 43'. The drive/restraint member 43 'is pivotally mounted to the seat back structural frame 45'. When the threaded screw shaft 27' is rotated in a first direction, the cable 19' is pushed and the cable 23' is pulled, causing the drive/restraining element 43' to rotate in an inward direction I towards the user, causing the side 46' of the seat back structure 7' to move in the inward direction I towards the user to provide increased bearing support to the user, which alters the profile of the seat back structure surface 9 '. When the threaded screw shaft 27' is rotated in a second direction opposite to the first direction, the cable 17' is pulled and the cable 23' is pushed such that the drive/restraining element 43' is rotated in an outward direction O away from the user such that the sides of the seat back structure 7' are moved in the outward direction O away from the user to provide reduced bearing support to the user which alters the profile of the seat back structure surface 9' such that the profile curvature of the seat back structure 9' is less. Another actuating mechanism, identical to actuating mechanism 11', may be provided to actuate another drive/restraining element 47' to adjust the other side 49 'of the seat back structure 7'. the driving/restraining element 47' and the driving/restraining element 43' can be moved simultaneously via actuation of the motor 25 '. In another embodiment, the drive/restriction element 47 'and the drive/restriction element 43' may be independently actuated via different motors.
Fig. 5 is an enlarged view of the actuating mechanism 11'.
Fig. 6 is a top cross-sectional view of the actuation mechanism 11'. When the cable 23 'is pulled, the side of the seat back structure 7' moves in an inward direction I toward the user to provide increased bearing support to the user. When the cable 19' is pulled, the side of the seat back structure 7' moves in an outward direction O away from the user to provide less bearing support to the user, which provides a seat back structure surface 9' having a flatter profile than the profile of the seat back structure surface 9' when the cable 19' is pulled. Multiple actuation mechanisms 11' may be connected to the seat back structure 7' such that multiple sections of the seat back structure 7' may have different profiles.
Fig. 7 and 8 are top views of the seat back structures 7, 7'. In fig. 7, the contour of the seat back structure surfaces 9, 9' has a reduced bearing support. In fig. 8, the profile of the seat back structure 9, 9 'has an increased bearing support and a more curved profile than the profile of the seat back structure 9, 9' shown in fig. 7.
Fig. 9 is another cross-sectional view of the actuating mechanism 11'. The cable 19 'is supported by a cable support structure 55', which cable support structure 55 'is connected to the seat back frame structure 45'. The seat back frame structure 45 'has an opening 51'. The cable 23 'extends through the opening 51'. The cable 23 'is supported by a cable support structure 53', which cable support structure 53 'is connected to the seat back frame structure 45'. The threaded region 4 'of the threaded screw shaft 27' is shown as having right-hand threads. The threaded region 39' is shown as having left-hand threads. When the threaded screw shaft 27 'is rotated in the first direction, the movable cable connector 35' and the movable cable connector 31 'move toward each other such that the cable connector cable 19' is pushed and the cable 23 'is pulled such that the drive/restraint element 43' rotates in an inward direction I toward the user such that the side 46 'of the seat back structure 7' moves in the inward direction I toward the user to provide increased bearing support to the user. When the threaded screw shaft 27 'is rotated in the second direction, the cable connector 31' and the cable connector 35 'move away from each other such that the cable connector 35' pulls the cable 17 'and the cable connector pushes the cable 21' such that the drive/restraining element 43 'rotates in an outward direction O away from the user such that the side of the seat back structure 7' moves in the outward direction O away from the user to provide reduced bearing support to the user. Another actuating mechanism, identical to actuating mechanism 11', may be provided to actuate another drive/restraining element to adjust the other side of the seat back structure 7'. Both driving/restraining elements can be moved simultaneously via actuation of the actuator 25'. In another embodiment, the drive/constraint elements may be independently actuated via different actuators.
Fig. 10 is a rear perspective view of another seat back structure 7 ". The seat back structure 7 "is identical to the seat back structure 7 and the seat back structure 7" except that a different actuation mechanism 11 "is used to change the profile of the seat back structure surface 9" of the seat back structure 7 ". The seat back structure 9 "engages and supports the user. The actuation mechanism 11 "may be mounted to the rear surface 14" of the seat back structure 7 ".
Fig. 11 is a cross-sectional view of the actuation mechanism 11 "and the seat back structure 7". The actuation mechanism 11 "includes a seat back drive/restraint structure 18". The drive/restraint structure 18 "includes an actuator structure 17", which is shown in the form of a cable 19 ". The drive/constraint structure 18 "includes another actuation structure 21". The further actuation structure 21 "is in the form of a cable 23". The drive/constraint structure 18 "includes an actuator 25". The actuator 25 "comprises a motor 26" and a rotatable structure 27". Rotatable structure 27 "includes roller 29". One end of the cable 23 "is connected to the rotatable structure 27" and the other end of the cable 23 "is connected to the drive restriction element 43". The drive/restraint element 43 "is connected to the seat back structure 7". One end of the cable 19 "is connected to the rotatable structure 27" and the other end of the cable 19' is connected to the driving/restraining element 43". The drive/restraint element 43 "is pivotally mounted to the seat back structural frame 45". The cable 19 "is supported by a cable support structure 55", which cable support structure 55 "is connected to the seat back frame structure 45". The seat back frame structure 45 "has an opening 51". The cable 23 "extends through the opening 51". The cable 23 "is supported by a cable support structure 53", which cable support structure 53 "is connected to the seat back frame structure 45". When the rotatable structure 27 "is rotated in the first direction B, the cable 19" is pushed and the cable 23 "is pulled, causing the drive/restraining element 43" to rotate in an inward direction I towards the user, causing the side 46 "of the seat back structure 7' to move in the inward direction I towards the user to provide increased bearing support to the user, which alters the profile of the seat back structure surface 9". When the rotatable structure 27 "is rotated in a second direction C opposite the first direction, the cable 17" is pulled and the cable 23 "is pushed such that the drive/restraining element 43" is rotated in an outward direction O away from the user such that the side 46 "of the seat back structure 7" is moved in the outward direction O away from the user to provide reduced bearing support to the user which alters the profile of the seat back structure surface 9 "such that bending of the profile of the seat back structure 9" is less. Another actuating mechanism, identical to actuating mechanism 11", may be provided to actuate another drive/restraining element to adjust the other side of the seat back structure 7". Both driving/restraining elements can be moved simultaneously via actuation of the actuator 25". In another embodiment, the drive/constraint elements may be independently actuated via different actuators.
Fig. 12 is a rear perspective view of another seat back structure 7' ". The seat back structure 7 '"is identical to the seat back structure discussed previously except that a different actuation mechanism 11'" is used to change the profile of the seat back structure surface 9 '"of the seat back structure 7'". The seat back structure 9' "engages and supports the user. The actuation mechanism 11 '"includes a seat back drive/restraint structure 18'". The drive/constraint structure 18 "includes a rotatable structure 27 '" coupled to an actuator 25' ". The actuator 25' "may be in the form of an electric motor or a manual actuation knob. The rotatable structure 27 '"includes a shaft 29'" having a threaded region 39 '"and a threaded region 41'". The rotatable structure 27 '"is supported by a seat back frame structure 45'" having a seat back structure frame portion 49 '"and a seat back structure frame portion 51'" with the seat back structure frame portion 51 '"being located at a spaced apart location from the seat back structure frame portion 49'". The threads of threaded region 39 '"are oriented in a direction opposite to the threads of threaded region 41'". The lateral restraint member 53 '"is connected to the seat back structure frame portion 49'". The drive/restraint element 43 '"is pivotally connected to the seat back structure frame portion 49'". The drive/restraint element 47 '"is pivotally connected to the seat back structure frame portion 51'". The drive/constraint element 43 '"has threads that engage the threaded region 39'". The drive/constraint element 47 '"has threads that engage the threaded region 41'". When the rotatable structure is rotated in the first direction B ', the drive/restraining element 43 ' "and the drive/restraining element 47 '" are simultaneously pivoted in an inward direction I towards the user such that the side 46 ' "and the side 55 '" of the seat back structure 7 ' "are moved in the inward direction I towards the user to provide increased bearing support to the user, which changes the contour of the seat back structure surface 9 '". When the rotatable structure is rotated in a second direction C 'opposite the first direction B', the drive/restraining element 43 '"and the drive/restraining element 47'" are pivoted in an outward direction O away from the user such that the side 46 '"and the side 55'" of the seat back structure 7 '"are moved in the outward direction O away from the user to provide reduced bearing support to the user which alters the profile of the seat back structure surface 9'".
Although various actuation mechanisms have been described, it should be understood that any suitable actuation mechanism may be used, including, but not limited to, bellcranks and direct drives.
One or more of a variety of actuation mechanisms may be coupled to the seat cushion 3 to move the lateral portion 4 of the seat cushion 3 and the other lateral portion 6 of the seat cushion 3 to provide increased lateral (seating) cushion support for the user. Fig. 13 is a cross-sectional view of an actuating mechanism 11' "coupled to the seat cushion 3 for simultaneously moving the lateral portions 4, 6 of the seat cushion to increase and decrease the seat cushion seating support of the user. The actuation mechanism 11 '"can be actuated such that the lateral portions 4 and 6 move in an inward direction I toward the user to provide increased seat cushion seating support to the user, which alters the profile of the user engagement surface of the seat cushion 3 that engages and supports at least a portion of the user's legs and buttocks. The actuation mechanism 11' "can be actuated to move the lateral portions 4 and 6 in an outward direction O away from the user to provide reduced seat cushion seating support to the user, which alters the contour of the seat cushion 3. Fig. 14 shows an actuating mechanism 11' connected to the seat cushion 3 for moving the lateral portions 4, 6 of the seat cushion 3 to increase and decrease the seat cushion bearing support for the user. The actuation mechanism 11' may be actuated such that the lateral portions 4 and 6 move in an inward direction I towards the user to provide increased seat cushion seating support to the user, which alters the profile of the seat cushion 3. The actuation mechanism 11' may be actuated to move the lateral portions 4 and 6 in an outward direction O away from the user to provide reduced seat cushion seating support for the user, which alters the contour of the seat cushion surface 3. Although only two examples have been shown and discussed, it will be appreciated that any of the actuation mechanisms discussed above may be used to move the lateral portions 4, 6 of the seat cushion 3 to alter the profile of the user-engaging surface of the seat cushion 3.
Fig. 15 is a sectional view of the actuation mechanism 11"" and the seat back structure 7"". The seat back structure 7"" may be formed of any elastomeric material, but the seat back structure 7"" is preferably formed of a thermoplastic elastomer (TPE). The seat back structure 7"" may be formed as a single piece to provide an integrally formed single piece seat back structure. The actuation mechanism 11"" includes a seat back drive/restraint structure 18"". The drive/restraint structure 18"" includes an actuator structure 17"" shown in the form of a cable 19 "". The actuator 25"" is connected to the actuator structure 17"". The actuator structure 17"" may include a motor 26"". one end of the actuator structure 17"" is connected to the actuator, and the other end of the actuator structure 17"" is connected to the driving/restraining element 43"". The drive/restraint element 43"" is formed as an integral part of the seat back structure 7"" such that the drive/restraint element 43"" is integrally connected to the seat back structure 7"" and is formed as a single piece with the seat back structure 7 "". The drive/restraint element 43"" is pivotally connected to the seat back structural frame 45"" via a seat back connecting member 48 "". In fig. 15, the seat back connecting member 48"" is integrally connected to the drive/restraining element 43"", such that the seat back frame connecting member 48"" and the drive/restraining element 43"" are formed as a single piece, however it should be understood that the seat back connecting frame member 48"" may be a separate component from the drive/restraining element 43"". the seat back connecting frame member 48"" is engaged with the seat back structure frame portion 49"" of the seat back structure frame 45 "". When the actuator 25"" is actuated, the actuator structure 17"" is pulled such that the drive/restraining element 43"" rotates in an outward direction O away from the user such that the side 46"" of the seat back structure 7"" moves in the outward direction O away from the user to provide reduced bearing support to the user, which changes the contour of the seat back structure surface 9"" of the seat back structure 7"" such that the contour of the seat back structure 9"" bends less (flatter). Fig. 16 is a cross-sectional view of the seat back structure 7"", the seat back structure 7"" "providing reduced bearing support as the actuation mechanism pulls the actuation structure 17" ". When the actuator 25"" is actuated such that the tension in the actuating structure 17"" is reduced, the drive/restraining element 43"" rotates in an inward direction I toward the direction of the user due to the resilient nature of the seat back structure 17"" to provide increased bearing support to the user, which changes the contour of the seat back structure 9"" such that the contour of the seat back structure 9"" is more curved (bowed). The resilient nature of the seat back structure 9"" allows the hinge to be incorporated directly into the seat back structure 9"" which simplifies construction and provides a simpler design. Another actuating mechanism identical to actuating mechanism 11"", may be provided to actuate another drive/restraining element identical to drive/restraining element 43"", to adjust another side of seat back structure 7 "". The two drive/constraint elements can be moved simultaneously via actuation of the actuator. In another embodiment, the drive/constraint elements may be independently actuated via different actuators.
Fig. 17 is a cross-sectional view of the actuation mechanism 11""' and the seat back structure 7 "". The drive/constraint structure 18"" 'is connected to the actuation mechanism 11""'. The actuation mechanism 11"" 'includes a rotatable threaded structure 27""'. The drive/restraint structure 18""' includes two cables 19"" "" "", 23 "". One end of the cable 19""' is connected to the rotatable screw structure 27"" "by a cable connector 22" ". The other end of the cable 19"" 'is connected to the seat back structure 7""'. One end of the cable 23""' is connected to the rotatable screw structure 27"" "by the cable connector 20" ". The other end of the cable 23"" 'is connected to the seat back structure 7""'. Each of the cable connectors 20"", 22""' has threads that engage the threads of the rotatable threaded structure 27 "". The rotatable screw structure 7"" 'is connected to a motor 26"", which motor 26""' can be actuated to rotate the screw structure 7"" ". Rotation of the rotatable screw structure 27"" 'in the first rotational direction causes the cable connector 20""' and the cable connector 22"" 'to move in a direction toward each other, which causes the cable 19""' to pull on and the cable 23"" "to pull on respective portions of the seat back structure 7" "'such that the seat back structure 7" "" moves to the forward state 52""' and the lateral sides 8"", 10"" "move in the outward direction O as shown in fig. 18. Rotation of the rotatable screw structure 27"" "in a second rotational direction opposite the first rotational direction causes the cable connector 20" "" and the cable connector 22"" "to move in directions away from each other, which releases the tension of the cables 19" "" and 23"", causing the seat back structure 7"" "to move to the rearward state 54" "" and the lateral sides 8"", 10"" "to move in the inward direction I, as shown in fig. 18. The spring 51"" 'is disposed between the cable connector 20""' and the cable connector 22"", and is connected to the cable connector 20"" 'and the cable connector 23""'. The spring 51"" 'allows the seat back structure 7""' to enter a rearward state during a vehicle accident, which prevents a passenger from being sprained.
Fig. 18 is a sectional view showing the forward state and the rearward state of the seat back structure 7 "".
Fig. 19 is an enlarged view showing the connection of the cable 23""' to the seat back structure 7 "". The cable connector structure 55""' is connected to the rear surface 6"" "of the seat back structure 7" ". The cable connector structure 55""' includes a rotatable connection structure 56"" "that is pivotally connected to connectors 58" ", 60" "". The connectors 58"", 60""' are directly secured to the rear surface 6"" "of the seat back structure 7" "". As the tension in the cable 23"" 'increases, the rotatable connection structure 56""' rotates relative to the connectors 58"", 60"", which causes the lateral side 8"" 'to pivot about the axis a' of the hinge. The connection of the cable 19"" 'to the seat back structure 7""' is identical to that shown in fig. 19, and will not be described again in order to avoid repetition.
Fig. 20 is a partial perspective view of the seat back structure 7 "". The seat back structure 7"" 'is fixed to the frame structure 2""', which forms the axis a ', B' of the hinge. The seat back structure 7""' is shown in fig. 20 as a compliant single, one-piece panel. The lateral side 10"" 'is pivotable about the axis B' of the hinge. The lateral side 8"" 'is pivotable about the axis a' of the hinge.
Fig. 21 is a side view of the seat back structure 7""' secured to the frame structure 2 "".
Fig. 22 is a sectional view of the seat back structure 7"" "and the actuating mechanism 11" ". The actuation mechanism H "" "is connected to the seat back drive/restraint member 22" "" and the seat back drive/restraint member 24 "". The drive/restraining members 22"", 24"" "are connected to the seat back structure 7" "'. The actuation mechanism 11"" "includes an actuator 25" "", wherein actuation of the actuator 25"" "moves the drive/restraining members 22" ", 24" ", which results in the contour of the seat back structure 7" ". When the drive/restraining members 22"", 24"" "are moved toward each other, the seat back structure moves to the forward state 52" "" and the lateral sides 8"", 10"" "move in the outward direction O as shown in fig. 18. When the drive/restraint members 22"", 24"" "move in a direction away from each other, the seat back structure 7" "" moves to the rearward state 54"", and the lateral sides 8"", 10"" "move in the inward direction I, as shown in fig. 18.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be otherwise embodied without departing from such principles.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be otherwise embodied without departing from such principles.
List of reference numerals
1. Chair structure
3. User support structure (cushion)
4. Cushion lateral part (side part)
5. User support structure (seat cushion) surface
6. Cushion lateral part (side part)
7. Chair backrest structure
9. Surface of seat back structure
11. Seat back actuating mechanism
13. Drive/restraint member
15. Rod
17. Structure for restraining/driving backrest of pivotable chair
19. Pivotable swivel chair back restraint/actuation first element
21. Pivotable swivel chair back restraint/drive second element
23. Connector element
25. Pin
27. Seat support structure
29. Motor with a motor housing
31. Shaft
7' Seat back structure
9' Seat back structural surface
11' Seat back actuation mechanism
13' Seat back connection structure
14' Seat back structure rear surface
15' Pipe
17' Actuating structure
18' Seat back drive/restraint structure
19' Cable
21' Actuating structure
23' Cable
25' Actuator
27' Bidirectional screw
Axis of axis
Axis of A
B' axis
29' Motor
31' Movable cable connector
33' Nut
35' Movable cable connector
37' Nut
39' Threaded region
41' Threaded region
43' Drive/constraint element
45' Seat back structure frame
46' Side of seat back structure
47' Drive/constraint element
49' Side of seat back structure
51' Opening
53' Cable support structure
55' Cable support structure
7' Chair back structure
9' Seat back structural surface
11' Actuating mechanism
14 "Rear surface of seat back structure
17' Actuation structure
18' Seat back drive/restraint structure
19' Cable
21' Actuation structure
23' Cable
25' Actuator
26' Motor
27' Rotatable member
29' Roller
43 "Drive/constraint element
45' Seat back structure frame
51' Opening
53' Cable support structure
55' Cable supporting structure
7' Seat back structure
9' "Seat back structural surface
11' "Actuation mechanism
18' "Drive/constraint structure
25' "Actuator
27' "Rotatable structure
29' "Axis
39' "Threaded region
41' "Threaded region
43' "Driving/restraining element
45' "Seat back structure frame
46' "Seat back structure lateral portion
47' "Driving/restraining element
49' "Seat back structure frame portion
51' "Seat back structure frame portion
53' "Lateral restraint structure
B, B' direction of rotation
C, C' direction of rotation
I inward direction
O is directed outwards
7"" Seat back structure
9"" Seat back structural surface
11"" Actuating mechanism
17"" Actuation structure
18"" Drive/constraint structure
19"" Cable
43"" Drive/constraint element
45"" Seat back structure frame
46"" Seat back structure lateral portion
48"" Seat back frame attachment member
49"" Seat back structure frame portion
2' Frame structure
6""' Seat back structure rear surface
7' Seat back structure
8' Lateral side
10""' Lateral side portion
18""' Driving/restraining structure
19""' Cable
20' Cable connector
22""' Cable connector
23' Cable
24' Screw thread
11""' Actuating mechanism
27""' Rotatable screw structure
26' Motor
51""' Spring
52""' Forward state
54""' Backward state
55' Cable connector structure
56""' Rotatable connection structure
58""' Connector
60""' Connector
7' Seat back structure
8"" "Lateral side
10"" "Lateral side
11"" "Actuating mechanism
22"" "Seat back drive/restraint member
24"" "Seat back drive/restraint member
25"" "Actuator 25" "" ";
52""' forward state
54"" "Backward status
Claims (13)
1. A vehicle seat, comprising:
A seat back structure comprising a panel and a seat support structure, the seating surface of the panel being configured to engage both a lumbar portion and a shoulder portion of a user, and the panel being a single integrally formed, one-piece panel comprising an elastomeric material;
An actuation mechanism connected to the panel, the actuation mechanism configured to change a contour of the seating surface of the panel;
Wherein the actuation mechanism comprises a restraining and driving structure comprising a driving member and comprising a pivotable restraining and driving seat back structure on each lateral side of the seat back structure, the pivotable restraining and driving seat back structure comprising a first element and a second element, the first element and the second element being connected via a connector element such that the second element is pivotable relative to the first element about a pivot axis through the connector element, the driving member being in contact with the second element and the second element being in contact with a respective lateral portion of the seat back structure, and the first element being fixed to the seat support structure; and
Wherein the drive member is actuated to rotate the two elements about the pivot axes and pivot the respective lateral portions of the seat back structure about the respective pivot axes in one of an inward direction toward a user of the seat back structure and an outward direction away from the user of the seat back structure, the lateral portions defining a bearing portion of the seat back structure.
2. The vehicle seat of claim 1, wherein the panel includes an integrated flex rotating member defining at least one pivot point of the panel.
3. The vehicle seat of claim 1, wherein the seat back structure is integrally connected to the pivotable restraint and drive seat back structure, wherein a portion of the seat back structure forms the pivotable restraint and drive seat back structure.
4. The vehicle seat of claim 1, wherein the panel structure comprises a thermoplastic elastomer.
5. The vehicle seat of claim 1, wherein the actuation mechanism further comprises:
on each side of the seat back structure, a threaded rod is located between the drive member and the respective pivotable restraint and drive seat back structure.
6. The vehicle seat of claim 1, wherein the actuation mechanism further comprises:
First and second flexible cables extending between the drive member and the respective pivotable restraint and drive seat back structure on each side of the seat back structure.
7. The vehicle seat of claim 1, wherein the actuation mechanism further comprises:
a rotatable thread structure;
First and second cables extending from opposite ends of the rotatable threaded structure to the panel, wherein one end of the first cable is connected to the rotatable threaded structure by a first cable connector, the other end of the first cable is connected to a back structure associated with the seating surface, one end of the second cable is connected to the rotatable threaded structure by a second cable connector, and the other end of the second cable is connected to the back structure; and
A spring located between the first cable connector and the second cable connector, the spring being connected to the first cable connector and the second cable connector.
8. A vehicle seat, comprising:
A seat back structure comprising a panel and a seat support structure, the seating surface of the panel being configured to engage both a lumbar portion and a shoulder portion of a user, the panel being a single integrally formed, one-piece panel comprising an elastomeric material;
An actuation mechanism connected to the panel, wherein actuation of the actuation mechanism causes one of an increase in bearing support and a decrease in bearing support of the panel;
wherein the actuation mechanism comprises a restraining and driving structure comprising a driving member and comprising a pivotable restraining and driving seat back structure on each lateral side of the seat back structure, the pivotable restraining and driving seat back structure comprising a first element and a second element, the first element and the second element being connected via a connector element such that the second element is pivotable relative to the first element about a pivot axis through the connector element, the driving member being in contact with the second element and the second element being in contact with a respective lateral portion of the seat back structure, and the first element being fixed to a seat support structure; and
Wherein the drive member is actuated to rotate the two elements about the pivot axes and pivot the respective lateral portions of the seat back structure about the respective pivot axes in one of an inward direction toward a user of the seat back structure and an outward direction away from the user of the seat back structure, the lateral portions defining a bearing portion of the seat back structure.
9. The vehicle seat of claim 8, wherein the seat back structure is integrally connected to the pivotable restraint and drive seat back structure, wherein a portion of the seat back structure forms the pivotable restraint and drive seat back structure.
10. The vehicle seat of claim 8, wherein the panel structure comprises a thermoplastic elastomer, the panel being a single integrally formed, one-piece panel.
11. A vehicle seat, comprising:
A seat back structure comprising a one-piece panel having a seating surface configured to engage both a lumbar portion and a shoulder portion of a user, the one-piece panel comprising an elastomeric material;
an actuation mechanism connected to the panel, wherein actuation of the actuation mechanism alters a contour of a seating surface of the panel such that the contour of the panel includes one of increased side support for a user of the single-piece panel and decreased side support for a user of the single-piece panel;
wherein the actuation mechanism comprises a restraining and driving structure comprising a driving member and comprising a pivotable restraining and driving seat back structure on each lateral side of the seat back structure, the pivotable restraining and driving seat back structure comprising a first element and a second element, the first element and the second element being connected via a connector element such that the second element is pivotable relative to the first element about a pivot axis through the connector element, the driving member being in contact with the second element and the second element being in contact with a respective lateral portion of the seat back structure, and the first element being fixed to a seat support structure; and
Wherein the drive member is actuated to rotate the two elements about the pivot axes and pivot the respective lateral portions of the seat back structure about the respective pivot axes in one of an inward direction toward a user of the seat back structure and an outward direction away from the user of the seat back structure, the lateral portions defining a bearing portion of the seat back structure.
12. The vehicle seat of claim 11, wherein the seat back structure is integrally connected to the pivotable restraint and drive seat back structure, wherein a portion of the seat back structure forms the pivotable restraint and drive seat back structure.
13. The vehicle seat of claim 11, wherein the seat back structure comprises a thermoplastic elastomer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762442689P | 2017-01-05 | 2017-01-05 | |
| US62/442,689 | 2017-01-05 | ||
| PCT/US2018/012169 WO2018129030A1 (en) | 2017-01-05 | 2018-01-03 | A vehicle seat having an adjustable seatback and/or an adjustable cushion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110352145A CN110352145A (en) | 2019-10-18 |
| CN110352145B true CN110352145B (en) | 2024-09-03 |
Family
ID=62791195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880014507.9A Active CN110352145B (en) | 2017-01-05 | 2018-01-03 | Vehicle seat with adjustable seat back and/or adjustable seat cushion |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20190329685A1 (en) |
| CN (1) | CN110352145B (en) |
| WO (1) | WO2018129030A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10843611B2 (en) * | 2016-07-19 | 2020-11-24 | Adient Luxembourg Holding S.Á R.L. | Vehicle seat including an adaptive lateral occupant support structure |
| US11254249B2 (en) | 2018-06-01 | 2022-02-22 | Adient Engineering and IP GmbH | Backrest with carrier module for a headrest, and seat |
| DE102018208693A1 (en) * | 2018-06-01 | 2019-12-05 | Adient Engineering and IP GmbH | Carrier module for a headrest, headrest assembly and seat |
| US12049162B2 (en) * | 2021-05-19 | 2024-07-30 | Adient Us Llc | Seat adjustment device for a flexible seat frame and method of use |
| US11974678B2 (en) * | 2021-07-19 | 2024-05-07 | Pierre Heroux | Cushioned furniture restoration kit |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018129030A1 (en) | 2018-07-12 |
| US20190329685A1 (en) | 2019-10-31 |
| CN110352145A (en) | 2019-10-18 |
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